ADS7822EB/250

Analog To Digital Converters (ADC) Overview

The ADS7822EB/250 is a 12-bit successive approximation register (SAR) analog-to-digital converter (ADC) manufactured by Texas Instruments. It supports sampling rates up to 200 kSPS and operates on a single 2.7 V to 5.25 V analog supply, with a digital supply range of 4.75 V to 5.25 V. The device features a pseudo-differential or single-ended input structure and communicates via a 3-wire serial interface compatible with standard SPI modes. Key performance metrics include a differential nonlinearity (DNL) and integral nonlinearity (INL) of ±2 LSB, a signal-to-noise and distortion ratio (SINAD) of 71 dB, and a typical power consumption of 1.6 mW. It is housed in an 8-pin VSSOP package.

Analog To Digital Converters (ADC) Feature Summary

• Micro-power operation with low voltage requirements suitable for battery-powered applications
• High-speed 12-bit resolution with 200 kSPS sampling capability
• Flexible input configuration supporting both pseudo-differential and single-ended signals
• Standard 3-wire serial interface for simple microcontroller integration

Analog To Digital Converters (ADC) Applications

• Portable instrumentation systems requiring low power consumption
• Industrial process control data acquisition
• Battery-operated measurement devices
• Medical equipment signal conditioning

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'EB' against the manufacturer's current datasheet to confirm pinout and electrical characteristics match your design requirements. Ensure the digital supply voltage aligns with your system logic levels, as the ADS7822EB/250 specifies a minimum digital supply of 4.75 V. Confirm packaging details such as reel size if ordering in bulk quantities from authorized distributors.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a balance between moderate speed (200 kSPS) and ultra-low power consumption is required. It is appropriate for designs needing 12-bit accuracy with external reference capabilities. Consider alternative models within the ADS7822 family if internal references or higher sampling rates are necessary, or if the digital supply voltage constraint of 4.75 V minimum is incompatible with the target system.

Analog To Digital Converters (ADC) Part Context

The ADS7822 series represents Texas Instruments' line of high-speed, micro-power SAR ADCs. The ADS7822EB/250 variant specifically denotes the 200 kSPS version in an 8-pin VSSOP package. This part belongs to a broader family that includes variants with different sampling speeds and packaging options, designed for applications demanding precision in compact form factors.

Analog To Digital Converters (ADC) Replacement Considerations

Direct substitutes may include other parts from the ADS7822 family, such as the ADS7822E/250, provided pinouts and electrical specifications are identical. Verify compatibility with any legacy Burr-Brown branded versions, as Texas Instruments acquired this product line. Ensure functional equivalence regarding serial interface timing and input ranges before substitution.